This is actually just Yates's 3rd year now, only ran the system for 2 years.

( If you count postseason as another "season", then Yates has been around 4 seasons )

His college ran an offense based on our system but I'm not sure for how long but we know it's at least 2 years. So he's had from 4-7 years in our system, depending on how long the Tarheels have been running an offense based on ours.